Raw Material

1)Rolling welded steel tube : OutDiameter 4.76mm-6.35mm , Wall Thickness 0.6-0.7mm;

2)Low carbon steel wire O.D:1.4-1.5mm ;

3)Bracket:Steel Plate (SPCC),thickness 0.6mm-1.5mm;

4)Steel Plate:SPCC with thickness 0.3mm-0.4mm;

Structure

1)Flat Type of wire on tube condenser used at the back ;

2)Bended or Spiral type of wire on tube condenser used at the bottom;

3)Wrapped type of tube embed on plate;

Key Process

Straightening cutting, bending, welding wire, molding, leakage testing, pre-treatment, electrophoresis, packing

Technical Ability

1)Wire Pitch ≥5mm;

2)Produce according to the drawing or sample supplied by clients;

Performance

1)Surface with electrophoresis coating to prevent the corrosion

2)Inner cleanness can meet the requirement of R134a &CFC cooling system; 

3)Can satisfy the cooling capability requirements;

4)Producing Capacity: 5000 Sets/Day;

R134a Cooling System Tube Inside Standards

Residual Moisture

≤20 mg/m2

Residual Impurity

≤30 mg/m2

Residual Mineral Oil

≤7 mg/m2

Residual Chlorine

≤0.3 mg/m2

Residual Paraffin

≤0.2 mg/m2

Specification of Coating

Coating Thickness

Thickness of cathodic electrophoresis coating ≥12 um

Harness of Coating

≥2H

Impact of Coating

50 cmkg/cm impact,no crack

Adhesion of coating

≥ two grade

Flexbility of Coating

Around R=3D bend 180°,no crack or no fall off

Color tolerance of Power Painting

E ≤ 1.5

Corrosion Resistant    

(Salt SprayGB2423)

Cathodic electrophoresis ≥96H